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Table 2 List of parameters used in GGE

From: A Grassmann graph embedding framework for gait analysis

Parameter

Description

Values/range of values that yield good performance in general

k

Number of neighbors for the local-based graph construction approach

3

t

Constant in the heat kernel function

{1, 2, …, 10}

q

The number of eigenvectors selected for the projection matrixU

About 30% of the smallest eigenvectors for Equation 11; about 30% of the smallest eigenvectors for Equation 17

σ

A regularization term for solving the generalized eigenvalue problems (11) and (17) which can improve the result

{1, 2, …, 10}

λ

A regularization parameter for the l1_ls procedure for SR

0.1